Last updated: August 27, 2025
September in Halmstad, Sweden offers a varied climate that reflects the transition from summer to autumn. With a maximum temperature peaking at 26°C (80°F), the month starts off warm, giving way to an average of 14°C (57°F). Early in September, chilly evenings can drop down to a minimum of 1°C (35°F). Rain is a common feature, with 93 mm (3.7 in) falling over approximately 14 days, contributing to a notably high humidity level of 82%. This mix of warmth and rainfall creates a unique atmosphere, perfect for experiencing the changing colors of the season.
As September rolls into Halmstad, Sweden, the transition from summer to autumn becomes evident in the city's temperatures. With a minimum of 1°C (35°F) and an average of 14°C (57°F), the month offers a refreshing coolness compared to the sweltering heights of July and August, where temperatures soared to 32°C (90°F). Daytime highs still reach 26°C (80°F), making it a pleasant time for outdoor activities, while the dipping nights signal the inevitable approach of colder weather. This month’s temperatures showcase a gentle decline from the warmth of summer, inviting both locals and visitors to savor the last bits of pleasant weather before autumn takes hold.
In September, Halmstad experiences a notable transition as the summer warmth gives way to the cooler embrace of autumn. With an average precipitation of 93 mm (3.7 in) spread across 14 rain-soaked days, this month marks a significant dip from August's peak of 118 mm. The lingering summer humidity often results in brief, yet intense showers, contributing to the overall rainfall. As the city prepares for the upcoming autumn months, September's dampness plays a crucial role in nourishing the lush landscapes, ensuring vibrant foliage as the days grow shorter. While the rain is frequent, it seldom dampens the spirit of this charming coastal town, where each drop is a reminder of nature's changing rhythm.
In Halmstad, Sweden, September experiences a notable shift in humidity, registering at 82%. This month marks a return to higher moisture levels following the drier summer months of June and July, which both had a low of 65%. As autumn approaches, September's humidity reflects a transition from the relative warmth of summer to the cooler embrace of fall, echoing the patterns seen in April. Interestingly, as the year progresses from September into October, humidity levels rise again, peaking at 90%, reminiscent of the notably damp conditions in the winter months of January and February, which hover near 92%. This cyclical trend highlights how Halmstad's climate features distinct seasonal shifts, creating a rhythm of humidity that shapes each month's character.
In Halmstad, Sweden, September ushers in a transition from summer's intense sun to the gentler rays of autumn. With a UV Index of 5, categorized as moderate, this month offers an opportunity for outdoor activities without the extreme risks of July and August, which both peaked at UV Index 7. The burn time increases slightly to 30 minutes, allowing for a bit more exposure than in the peak summer months but still necessitating caution. As the days grow shorter and cooler, it's important to remain vigilant about sun safety even as the seasons change. For more detailed insights, check out the Halmstad UV Index.
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In September, Halmstad basks in approximately 298 hours of sunshine, marking a beautiful transition into autumn. This month still shines brightly against the backdrop of the year, although it's a noticeable dip from the sun-soaked peak of June and July, which offer the year's most generous hours at around 453 and 452 respectively. As August begins to cool down with 400 hours, September gracefully follows, holding on to the warmth of summer just long enough to remind residents of the sun's lingering presence. Expertly nestled between the summer's glow and the crispness of fall, September offers a delightful ambiance, showcasing the town's natural beauty while signaling the gradual shift into shorter days ahead.
In Halmstad, Sweden, September brings a notable shift in sunshine opportunities as summer wanes, with a 28% chance of sunny days. This dip follows a more promising August and July, where sunny weather lingers at 37%. Interestingly, September's likelihood of sunshine is notably higher than the winter months, such as January, which struggles at just 16%. As the year progresses, the trend indicates a gradual decrease in sunny days, with April peaking at 53% as spring blooms. Although September may not boast the sunniest days, it serves as a gentle transition into the cooler months, reminding us of the fleeting warmth of summer.
As summer transitions into autumn, September in Halmstad, Sweden, witnesses a gradual decline in daylight, offering around 12 hours of sunlight. This marks a notable decrease from the peak of 17 hours experienced in the height of summer, yet still revels in the lingering glow of late summer warmth. The trend illustrates a shift from the vibrant, sun-drenched days of June and July to the shorter, crisp days that signify the approach of autumn. Following September, the daylight hours continue to dwindle, dropping to 10 hours in October and even lower in the subsequent months. This seasonal rhythm not only highlights the beauty of changing light but also serves as a reminder of the cyclical nature of time in this charming coastal town.
As summer gives way to autumn, September in Halmstad, Sweden experiences a gentle breeze with an average wind speed of 3.5 m/s (8 mph). This marks a slight dip from the more vigorous gusts of the previous months, reflecting the waning warmth of summer. While the wind slows compared to the lively air currents of July and August, it prepares the landscape for the invigorating gusts that are to come in October, which sees a notable increase to 4.6 m/s (10 mph). Overall, September serves as a serene transition, where the winds shift just enough to keep the air fresh and crisp, heralding the beautiful colors of autumn.
Weather in Halmstad varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Halmstad, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present stark contrasts in weather patterns. In September, temperatures range from a mild 1°C (35°F) to a warm 26°C (80°F), with an average of 14°C (57°F), alongside relatively high humidity at 82%. The month sees considerable precipitation, with 93 mm (3.7 in) falling over an average of 14 days. In contrast, January experiences much colder conditions, with temperatures dipping as low as -13°C (8°F) and reaching a maximum of just 10°C (49°F), resulting in an average of 2°C (36°F). While precipitation is lower at 58 mm (2.3 in) over 10 days, the humidity remains high at 92%. For a deeper look at what January holds, explore Halmstad weather in January.
In comparing the weather between September and February, notable differences emerge. September boasts a milder temperature range, with minimums around 1°C (35°F) and maximums reaching up to 26°C (80°F), resulting in an average of 14°C (57°F). The month sees considerable rainfall, totaling 93 mm (3.7 in) over approximately 14 days, coupled with a humidity level of 82%. In contrast, February presents a much colder climate, with temperatures dipping to a minimum of -15°C (5°F) and an average of just 1°C (35°F). Although precipitation is lower at 67 mm (2.6 in) over 11 days, the humidity is slightly higher at 91%. For more specific insights about the weather during this time, you can visit Halmstad weather in February.
When comparing the weather in September and March, one can observe significant differences in temperature and humidity. September enjoys milder temperatures, ranging from a minimum of 1°C (35°F) to a maximum of 26°C (80°F) with an average of 14°C (57°F). In contrast, March experiences cooler conditions, with temperatures dipping as low as -12°C (10°F) and averaging just 3°C (38°F), peaking at 13°C (56°F). Furthermore, while September has 93 mm (3.7 in) of precipitation over 14 days, March sees less precipitation at 69 mm (2.7 in) over 13 days. The humidity levels are also slightly higher in March at 89% compared to September’s 82%. For a more detailed overview of March weather in Halmstad, you can visit Halmstad weather in March.
In September, Halmstad experiences a wider temperature range with minimum temperatures around 1°C (35°F) and maximums reaching up to 26°C (80°F), resulting in an average of 14°C (57°F). This month also sees more rainfall, with a total of 93 mm (3.7 in) spread over about 14 days, contributing to the consistently high humidity level of 82%. In contrast, April features cooler conditions, with minimum temperatures dropping to -7°C (20°F) and maximums peaking at 24°C (76°F), yielding a much lower average of 7°C (45°F). Rainfall during April is less, only 41 mm (1.6 in) over 8 days, yet the humidity remains at 82%, indicating a potentially chilly dampness. For more detailed information, you can visit Halmstad weather in April.
September and May exhibit contrasting weather patterns, despite both months featuring similar numbers of rainy days. In September, temperatures range from a minimum of 1°C (35°F) to a maximum of 26°C (80°F), with an average of 14°C (57°F) and higher humidity at 82%. This month also sees a notable amount of precipitation at 93 mm (3.7 in). Conversely, May has a cooler temperature range, with lows of -1°C (30°F) and highs reaching up to 29°C (85°F), averaging 12°C (53°F) while enjoying lower humidity at 70% and less precipitation at 71 mm (2.8 in). For those looking to explore the weather patterns of May in more detail, check out Halmstad weather in May.
In September, the weather is marked by a wider temperature range, with temperatures ranging from a chilly 1°C (35°F) at night to a pleasantly warm average of 14°C (57°F) during the day, peaking at 26°C (80°F). This month also sees increased precipitation, with 93 mm (3.7 in) falling over 14 days and a higher humidity level of 82%. In contrast, June offers milder conditions, with minimum temperatures around 7°C (44°F) and average daytime temperatures of 17°C (63°F), reaching a maximum of 29°C (84°F). Rainfall is lighter in June, totaling 58 mm (2.3 in) over 12 days, and the humidity is notably lower at 65%. For more detailed information about the weather in June, you can visit Halmstad weather in June.
When comparing the weather in September to that of July, notable differences emerge. September features cooler temperatures, with a minimum of 1°C (35°F) and an average of 14°C (57°F), while July enjoys a warmer range, with a minimum of 7°C (44°F) and an average of 18°C (64°F). The maximum temperature in July also peaks at a higher 32°C (91°F), compared to September's maximum of 26°C (80°F). Both months experience similar precipitation levels—approximately 93 mm (3.7 in) in September and 95 mm (3.7 in) in July—but September has slightly more rainy days, with 14 compared to July's 15. Humidity is higher in September at 82%, compared to a more comfortable 65% in July. For more details on July weather, you can refer to Halmstad weather in July.
In comparing September and August weather, September tends to be cooler with average temperatures ranging from a chilly 1°C (35°F) to a warm 26°C (80°F), whereas August experiences higher temperatures, typically between 5°C (42°F) and a peak of 32°C (90°F). Rainfall is slightly lower in September, with 93 mm (3.7 inches) over 14 days compared to August's 118 mm (4.6 inches) over 18 days. Interestingly, September also has higher humidity at 82%, compared to 71% in August, contributing to a different feel in the air as summer transitions to autumn. For more detailed weather insights, you can check Halmstad weather in August.
In September, the weather tends to be milder with average temperatures ranging from a minimum of 1°C (35°F) to a maximum of 26°C (80°F), while October brings a noticeable chill, featuring temperatures that dip to a minimum of -4°C (26°F) and an average of 10°C (50°F). Additionally, October experiences more precipitation, with 108 mm (4.2 in) falling over 17 days compared to September's 93 mm (3.7 in) over 14 days. The humidity also increases slightly in October, reaching 90% compared to September's 82%. For a more detailed look at what to expect, check out Halmstad weather in October.
September weather marks the transition from summer to autumn, with temperatures ranging from a mild 1°C (35°F) at night to a pleasant 26°C (80°F) during the day. The month experiences around 93 mm (3.7 inches) of precipitation over approximately 14 days, contributing to a relatively high humidity of 82%. In contrast, November introduces colder conditions, with temperatures dropping significantly, from a low of -7°C (19°F) to a maximum of only 16°C (60°F) and an average of just 6°C (43°F). Although precipitation decreases to 64 mm (2.5 inches) over 13 days, humidity remains high at 92%, making the air feel chillier. For more details on November weather, you can visit Halmstad weather in November.
September and December present distinct contrasts in weather, marking the transition from late summer to mid-winter. In September, temperatures range from a mild 1°C (35°F) at night to a warm average of 14°C (57°F) and peak at a comfortable 26°C (80°F), creating a pleasant atmosphere for outdoor activities. However, this month also sees significant precipitation, with 93 mm (3.7 in) over 14 days and a humidity level of 82%.
On the other hand, December ushers in much colder conditions, with temperatures dipping to a chilling minimum of -10°C (14°F) and an average of just 3°C (37°F), reaching a maximum of 9°C (49°F). Precipitation remains consistent, recorded at 81 mm (3.2 in) over 15 days, but the humidity rises to 91%, adding to the crisp winter air. For those interested in a more detailed overview of December's climate, check out Halmstad weather in December.
As summer transitions to autumn, September in Halmstad offers a unique blend of warm days and crisp evenings. While temperatures can reach a pleasant 26°C, the average cools significantly, hinting at the upcoming season. With an average humidity of 82%, the air feels more refreshing, although rain can make its presence felt, totaling 93 mm over about half the month. Compared to the hotter summer months, September's weather is a gentle reminder of nature’s cycle as it shifts towards cooler, more temperate days. For a deeper dive into what you can expect throughout the year, check out the Halmstad Climate page.